package JDBC;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) throws Exception{
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection conn = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        System.out.println("与数据库链接成功！");
        Statement stmt=conn.createStatement();
        String sql="UPDATE userinfo "+
                "SET password ='666666'"+
                "WHERE username='张三'";

        int num=stmt.executeUpdate(sql);
        if (num>0){
            System.out.println("修改成功");
        }else {
            System.out.println("修改失败");
        }

        conn.close();






    }

}
